Yinqiao powder. Displayed according to query of febrile diseases textbook. When a rash occurs due to lung heat due to wind-heat disease, the treatment method is to relieve the lung heat and cool down the rash to clear up the rash. The prescription is Yinqiao powder and fermented soybean, plus the recipe of Rehmannia glutinosa, paeonol bark, Daqingye, and Scrophulariaceae. Fang explained that the evil in this syndrome is not superficial, so he removed the tempeh to relieve the superficial symptoms. Due to lung heat and red rash, he added raw rehmannia root, paeonol bark, Daqingye, Scrophulariaceae and other cool ingredients to relieve heat and detoxify. It has the effect of relieving the lungs and releasing heat, cooling the camp and clearing up rash. When used clinically, if there is no evidence of superficial depression, Schizonepeta can also be used to remove it. It can be seen that Yinqiao Powder is originally a prescription for clearing away lung heat.